Study and application of non-contact coordinate measuring system

Chao Bi; Xia Guo; Yong Liu; Laipeng Lv; Zhongda Yu

doi:10.1117/12.2197589

8 October 2015 Study and application of non-contact coordinate measuring system

Chao Bi, Xia Guo, Yong Liu, Laipeng Lv, Zhongda Yu

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 96770F (2015) https://doi.org/10.1117/12.2197589
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

As to the inspection of small and medium workpieces with complex surfaces such as blades, a non-contact optical measuring system is built up in the paper. With the system, the measurement task of such parts can be accomplished in a rapid, precise and efficient manner. Based on the laser displacement sensor, probe head and the mechanical framework of CMM etc, the system combines the advantages of optical sensor and CMM together to cope with the measurement of sculptured surfaces. In the system, the unit direction vector of measuring beam can be obtained through calibration method, which is based on solving of a series of overdetermined nonlinear equations. After that, the one-dimensional length of the laser beam can be transformed to the three-dimensional coordinates of the points on the surface. At the same time, the coordinates of measuring points can be converted to the same world coordinate system to complete the construction of point clouds through coordinate system transformation. Finally, a standard gauging block is measured by the system at 10 different orientations. Compared with the real value, the errors of the 10 measuring results are all smaller than 0.05mm, which manifests the practicability and validity of the system.

Citation Download Citation

Chao Bi, Xia Guo, Yong Liu, Laipeng Lv, and Zhongda Yu "Study and application of non-contact coordinate measuring system", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96770F (8 October 2015); https://doi.org/10.1117/12.2197589

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available